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How Manufacturing Processes Can Impact Reliability in RF Circuits

Posted by Stephanie Weaver on Wed, Aug 01, 2018 @ 12:19 PM

When you consider the RF applications utilized in mission critical C5ISR environments, your contract manufacturer (CM) must comprehend the issues and challenges related to manufacturing processes in RF, but also have a deep understanding of the failure mechanisms that can cause defects.

RF design is inherently more complex than any other type of design. This is because of the unique issues that must be addressed due to the extremely high frequencies of operation for these applications.  For example, there are inherent challenges with power control, grounding structures, printed wiring board (PWB) stack-ups, laminate and surface finish selection, characteristic impedance control, signal path configurations, connectorization, pad geometries, solder mask, conformal coating, surface parasitics, exposure to harsh environments, fabrication effects, via sizing, component selection, and manufacturing process impacts.  These numerous issues must be well understood by your CM or the potential for failure is magnified. 

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Topics: electronics manufacture, PCB process, manufacturing, PCB assembly technology, PCB, electronics manufacturing

PC Board Assembly: All About Perfect Tolerances

Posted by Laura Austin on Sat, Mar 23, 2013 @ 07:00 AM

Without the help of rigorous testing and assembly compliances, the whole process of PC Board assembly wouldn't be able to endure the life cycle of being a PCB and more than likely would fail much sooner than later. All of those tests aren't just for the sake of testing, they are implemented to make sure that everything is in working order and the board itself can withstand extreme heat, cold, and even weight distribution and tolerances. However, the tests themselves even need to have perfect ratings--especially when it comes to tolerances, in particular.Tolerances are what the PCB will go through in order to pass all of its testing, making sure it can work properly in certain situations without short circuiting, breaking, or shutting down completely. But most importantly, there are also tolerances during the design phase to make sure that the board is "balanced" when it comes to all of its components and won't suffer from breakage or overload.

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Topics: pcb assembly, PCB assembly technology, pcb assembly service, pc board assembly, PB board assembly manufacturer

PCB Assembly Service: Advantages Start With Economies of Scale

Posted by Laura Austin on Sat, Dec 01, 2012 @ 07:00 AM

When it comes to your operating budget, one of the biggest things you're probably concerned about is the manufacturing and distribution Printed Circuit Boards (PCBs) that are being assembled specifically for you. 

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Topics: PCB, pcb assembly, PCB assembly technology, pcb assembly service

Tin Whisker Formation and Impact on PCB Assembly Reliability

Posted by Laura Austin on Sat, Oct 20, 2012 @ 07:00 AM

Considerably different from dendrites or other such shapes in components, tin whiskers can pose a very serious problem for a circuit board and other types of technology if they happen to be found and identified correctly. Tin whiskers are structures of "crystalline" formations that resemble whiskers and are most commonly found in electroplated tin that is used a finish on components, including PCB.

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Topics: contract electronics manufacturing, pcb assembly, electronic manufacturing company, electronic PCB assembly, pcb assembly service, electronics assembly companies, Contract Electronic Assembly, US manufactured electronics, PCB assembly technology, assembly manufacturer